You’ll have to call the bottler to find out how much fluoride is in a particular brand of bottled water, and amounts may vary from lot to lot of the same brand. Some brands that have a fluoride-free product are listed on the website www.nofluoride.com. They include:

These bottled water products are labeled as de-ionized, purified, demineralized, or distilled, unless they specifically list fluoride as an added ingredient. Bottled water suppliers are graded by how readily they share information concerning the purity of their products on the Environmental Working Group website, ewg.org.